<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title>列表过滤</title>
    <!-- 引入Vue -->
    <script type="text/javascript" src="../js/vue.js"></script>
</head>

<body>

    <!-- 准备好一个容器 -->
    <div id="root">
        <!-- 遍历数组 -->
        <h2>人员列表</h2>
        <input type="text" placeholder="请输入名字" v-model="keyWord">
        <ul>
            <li v-for="(p,index) in filPerson" :key="p.id">
                {{p.name}}-{{p.age}}-{{p.sex}}
            </li>
        </ul>
    </div>
</body>
<script type="text/javascript">
    Vue.config.productionTip = false; //阻止Vue启动时生成生产提示
    //用watch实现
    //#region
    /* const vm = new Vue({
        el: '#root',
        data: {
            keyWord: '',
            persons: [
                { id: '001', name: "马冬梅", age: 18, sex: "女" },
                { id: '002', name: "周冬雨", age: 19, sex: "女" },
                { id: '003', name: "周杰伦", age: 20, sex: "男" },
                { id: '004', name: "温兆伦", age: 20, sex: "男" }
            ],
            filPerson: []
        },
        watch: {
            keyWord: {
                immediate: true,
                handler(val) {
                    console.log('keyWord被改了', val);
                    this.filPerson = this.persons.filter((p) => {
                        return p.name.indexOf(val) !== -1;
                    });
                }
            }
        }
    }); */
    //#endregion
    //`//#region`和`//#endregion`配合使用用于折叠代码(仅限于VSCode中)
    //计算属性实现
    const vm = new Vue({
        el: '#root',
        data: {
            keyWord: '',
            persons: [
                { id: '001', name: "马冬梅", age: 18, sex: "女" },
                { id: '002', name: "周冬雨", age: 19, sex: "女" },
                { id: '003', name: "周杰伦", age: 20, sex: "男" },
                { id: '004', name: "温兆伦", age: 20, sex: "男" }
            ]
        },
        computed: {
            filPerson() {
                return this.persons.filter((p) => {
                    return p.name.indexOf(this.keyWord) !== -1;
                });
            }
        },
    });
</script>

</html>